ZA898636B - Optical determination of velocity - Google Patents

Optical determination of velocity

Info

Publication number
ZA898636B
ZA898636B ZA898636A ZA898636A ZA898636B ZA 898636 B ZA898636 B ZA 898636B ZA 898636 A ZA898636 A ZA 898636A ZA 898636 A ZA898636 A ZA 898636A ZA 898636 B ZA898636 B ZA 898636B
Authority
ZA
South Africa
Prior art keywords
velocity
optical determination
determination
optical
Prior art date
Application number
ZA898636A
Other languages
English (en)
Inventor
Robert Jeffry Geddes Carr
Jeffry Geddes Carr Robert
David John Clarke
John Clarke David
Sumaia A-Shukri
A-Shukri Sumaia
Original Assignee
Health Lab Service Board
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Health Lab Service Board filed Critical Health Lab Service Board
Publication of ZA898636B publication Critical patent/ZA898636B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1434—Optical arrangements
    • G01N2015/1447—Spatial selection
    • G01N2015/145—Spatial selection by pattern of light, e.g. fringe pattern

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
ZA898636A 1988-11-11 1989-11-13 Optical determination of velocity ZA898636B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888826487A GB8826487D0 (en) 1988-11-11 1988-11-11 Optical determination of velocity

Publications (1)

Publication Number Publication Date
ZA898636B true ZA898636B (en) 1990-08-29

Family

ID=10646747

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA898636A ZA898636B (en) 1988-11-11 1989-11-13 Optical determination of velocity

Country Status (12)

Country Link
US (1) US5160976A (xx)
EP (1) EP0442960A1 (xx)
JP (1) JPH04501610A (xx)
AU (1) AU4639489A (xx)
BR (1) BR8907768A (xx)
CA (1) CA2002809A1 (xx)
DK (1) DK87691A (xx)
FI (1) FI912295A0 (xx)
GB (1) GB8826487D0 (xx)
HU (1) HU900286D0 (xx)
WO (1) WO1990005310A2 (xx)
ZA (1) ZA898636B (xx)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670293B1 (fr) * 1990-12-05 1994-05-06 Etat Francais Delegue Armement Procede et dispositif pour la mesure de la vitesse d'un ecoulement de fluide ou de particules.
US5383024A (en) * 1992-08-12 1995-01-17 Martin Marietta Energy Systems, Inc. Optical wet steam monitor
FR2714971B1 (fr) * 1994-01-13 1996-03-22 Sextant Avionique Capteur de mesure de la concentration en eau liquide dans un gaz en mouvement.
US6956230B1 (en) 1999-09-17 2005-10-18 California Institute Of Technology Integrated particles sensor formed on single substrate using fringes formed by diffractive elements
AU1491601A (en) * 1999-09-17 2001-04-17 California Institute Of Technology Integrated sensors
US6875973B2 (en) * 2000-08-25 2005-04-05 Amnis Corporation Auto focus for a flow imaging system
AU2001290568A1 (en) 2000-08-25 2002-03-04 Amnis Corporation Measuring the velocity of small moving objects such as cells
EP1308732A1 (en) * 2001-11-01 2003-05-07 Forskningscenter Riso Optical device and method for measuring velocity
DE102005042954B4 (de) * 2005-09-05 2007-07-12 Technische Universität Dresden Vorrichtung und Verfahren zur Bestimmung von Geschwindigkeitsprofilen in beliebig gerichteten Strömungen
GB0616837D0 (en) 2006-08-25 2006-10-04 Moir Christopher I Velocity detector
US7450222B1 (en) 2007-07-02 2008-11-11 The United States Of America As Represented By The United States Department Of Energy Correlated-intensity velocimeter for arbitrary reflector
US8120759B2 (en) 2008-03-31 2012-02-21 Vestas Wind Systems A/S Optical transmission strain sensor for wind turbines
GB2461532A (en) * 2008-07-01 2010-01-06 Vestas Wind Sys As Sensor system and method for detecting deformation in a wind turbine component
GB2461566A (en) * 2008-07-03 2010-01-06 Vestas Wind Sys As Embedded fibre optic sensor for mounting on wind turbine components and method of producing the same.
GB2463696A (en) * 2008-09-22 2010-03-24 Vestas Wind Sys As Edge-wise bending insensitive strain sensor system
GB2466433B (en) 2008-12-16 2011-05-25 Vestas Wind Sys As Turbulence sensor and blade condition sensor system
GB2472437A (en) 2009-08-06 2011-02-09 Vestas Wind Sys As Wind turbine rotor blade control based on detecting turbulence
GB2477529A (en) 2010-02-04 2011-08-10 Vestas Wind Sys As A wind turbine optical wind sensor for determining wind speed and direction
DE102011009675B4 (de) * 2011-01-24 2013-08-01 Technische Universität Dresden Verfahren zur Bestimmung von Geschwindigkeiten in Strömungen und Phasen-Frequenz-Gechwindigkeits-Feldsensor
CN103487067B (zh) * 2013-10-12 2016-05-11 复旦大学 利用波分复用技术消减干涉路径散射、反射光干扰的方法与系统
CN110827638B (zh) * 2019-10-31 2024-05-07 浙江理工大学 一种光场产生装置
JP2023020673A (ja) * 2021-07-30 2023-02-09 国立大学法人 東京大学 微粒子計測装置及び微粒子計測方法
US20240159907A1 (en) * 2022-11-16 2024-05-16 The Boeing Company Optical dual frequency shift laser vehicle speed detection system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3484153A (en) * 1966-10-19 1969-12-16 Bell Telephone Labor Inc Transparent eutectics with lamellar microstructures and method of making same
US3897152A (en) * 1974-02-04 1975-07-29 Us Air Force Laser doppler velocimeter
JPS561608B2 (xx) * 1974-04-27 1981-01-14
US4148585A (en) * 1977-02-11 1979-04-10 The United States Of America As Represented By The Department Of Health, Education & Welfare Three dimensional laser Doppler velocimeter
DE2747243A1 (de) * 1977-10-21 1979-04-26 Philips Patentverwaltung Beugungsgitter zur erzeugung von farbauszuegen
US4243398A (en) * 1978-02-09 1981-01-06 Nippon Electric Co., Ltd. Method of producing dielectric diffraction gratings or dielectric multilayer interference filters
FR2454102A1 (fr) * 1979-02-27 1980-11-07 Anvar Procede et dispositif pour la mesure simultanee de vitesses, fluctuations de vitesses et diametres de particules submicroniques dans un fluide
US4387993A (en) * 1981-06-25 1983-06-14 Tsi Incorporated Particle size measuring method and apparatus
US4566889A (en) * 1983-10-28 1986-01-28 Chevron Research Company Process of fabricating a portion of an optical fiber capable of reflecting predetermined wavelength bands of light
DE3507513A1 (de) * 1985-03-04 1986-09-18 Philips Patentverwaltung Gmbh, 2000 Hamburg Digitales phasengitter fuer einen optischen leistungs- und farbteiler
GB2189901B (en) * 1986-04-25 1989-12-06 Stc Plc Laser induced optical fibre grating devices.
GB8621426D0 (en) * 1986-09-05 1986-10-15 Health Lab Service Board Particle analysis

Also Published As

Publication number Publication date
WO1990005310A2 (en) 1990-05-17
JPH04501610A (ja) 1992-03-19
WO1990005310A3 (en) 1991-01-10
FI912295A0 (fi) 1991-05-10
GB8826487D0 (en) 1988-12-14
US5160976A (en) 1992-11-03
HU900286D0 (en) 1991-08-28
BR8907768A (pt) 1991-08-20
DK87691A (da) 1991-07-05
EP0442960A1 (en) 1991-08-28
CA2002809A1 (en) 1990-05-11
DK87691D0 (da) 1991-05-10
AU4639489A (en) 1990-05-28

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